Calculating-machine



F. TRINKS.

CALCULATING MACHINE.

APPLICATION FILED NOV. 2, 1915.

Patented Dec. 13, 1921.

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Application filed November 8, 1915. Serial No. 59,245.

(GRANTED UNDER THE PROVISIONS OF THE A01. 01' MARCH 8,

To all whom it may concern:

Be it known that I, FRANZ TRINKS, a citizen of the Duchy of Brunswick, Empire of Germany, residing at Brunswick, Germany, have invented certain new and useful Improvements in Galculating-Machines, for which I have filed an application in ermany October 3, 1914,) of which the followin is a specification.

My invention relates to improvements in calculating machines, and more particularly in calculating machines of the class shown and described in the United States Letters Patent No. 823,375 granted June 12, 1906. In this previous patent the valueis registered by means of toothed, disks provided with shiftable teeth, which are set in operative position by turning a cam disk connected with each toothed disk. Each cam disk is provided with a handle projecting through a slot in the casing of the machine and serving for setting the disk; this handle arrangement might of course be replaced by any other setting device, such as for instance a number of keys corresponding to the number of cam disks.

Machines of this class heretofore have been combined with printing devices adapted to automatically set and print the numbers registered, such printing devices being actuated by the toothed disks whenever thesedisks are operated by turning a crank handle connected with their axle.

The particular object of my invention is to provide a machine of this kind with a device for automatically returning said printing devices to zero position, before the crank handle has come to rest again.

With the foregoing and other objects in view the invention consists of the novel construction, combination and arrangement of parts hereinafter more specifically described, illustrated in the accompanyin drawings, which form a part of this speci cation, and particularly pointed out in the claims hereunto appended.

In describing the invention in detail reference is had to the accompanying drawings, in which Figure l-is a side view of a calculating machine constructed in accordance with this invention with the corresponding side wall of the casing removed, and in which Fig. 2 is a detail view of certain parts associated with the zero-setting mechanism.

type, with radially-shiftable teeth ,means of cam disks in; the disks 7a through the sight .ac-tuate a series of 182 1, 41 STAT. 12., 1818.)

Referring to the drawings, 1', indicates one of the usual settin disks, provided, as is customary in calcu ating machines of this 7 set by and r being loosely and fixedly mounted, respectively, on the main drive shaft e, operated in the usual way by the crank handle m, and acting to run up the individual digits of the numbers to be registered in the mechanism 'w, the wheels of which are visible openings 8. This running up of the numbers takes initial rotation of said disks, the set teeth f of which actuate the wheels'of the registering mechanism, as will be understood.

As the setting disks continue their rotation, their set or displaced teeth enga e and gears 1 connected y idle gears with a series of gears at, so that the latter are turned through the same angle 'as the register wheels, such rotation commencing either after the rotation of the register wheels has been completed, or just before it has been completed. In either case, the re: tation of the gears w is utilized to set a series of printing devices, to which they are rigidly attached, said printing device being here shown as in the form of segments g,.carrying peripheral types if, so that the segments, when so set, will print upon a continuous strip of paper p the same number that has just been run into the register. This paper strip is led into the machine through a slot in the casing, then passed around a roller platen d, and then led out through a second slot located above the first or entrance slot, as clearly depicted in Fig. l. The roller platen is caused to swing inwardly against the previously-set segments 9 before the crank handle m completes its movement, and is mounted, for that purpose, in a rocking frame g, which is fulcrumed intermediate its upper and lower ends and normally held in retracted or ineii'ective position by a spring h. The lower end of the frame is connected by a rod or link 0 with a lever u, which is pivoted at the bottom of the casing in position to be struck by said handle, the spring h returning said frame to its normal position after the handle has released the said lever u. The printed strip may then be drawn out by hand through the upper slot far enough to permit the printed number Specification of Letter: Patent. I Patented-Dec. 13, 1921. r

place during the taken place. This may be effected by rotating the shaft awhereon said segments and 1913. That is to say,

their gears are loosely mounted, said shaft w preferably having the same form as the shaft for returning to zero the setting disks shown and described in United States Patents Nos. 946,367 and 1,075,073, granted, respectively, January 11, 1910 and October 7, the shaft is designed to move endwise in one direction, when rotated, so as to bring a set of radial pins 12 thereon into theplane of the lateral pins 0 with which the ears w are provided, so that during the contlnued rotation of said shaft, th pl s I) will engage the gear pins 0 and transmit such rotation to said gears, with the result that the latter, and with them the printing segments, arereturned to zero position. The endwise movement of said shaft is effected by means of inter-engaging cam parts a and (1 (Fig. 2), fixed, respectively, to the projecting end of the shaft and to the adjacent wall of the casing, said wall having an opening for the passage of the shaft end therethrough, as will be understood. In the patents above referred to, the

rotation of the corresponding shafts is effected manually, by means of a device located in the, projecting shaft end, and in the present construction, such a device in the form of a handle a is also provided; but this handle a plays no part in the automatic'rotation of the segment shaft, which is one of the main features of the invention, and is actuated only when it is desired to manually zero-set the printing segments for one reason or another.

The automatic rotation of the segment shaft a is preferably effected b means of a disk or mutilated gear a, whic is fixed to the main shaft 6 and is provided upon a portion of its periphery with teeth for engagement with an idle gear '5. This gear 6,

- 1n turn, meshes with and drives a gear n,

which is keyed to shaft a, so that the rotation of gear 7; will produce rotation of said shaft and, consequently, its endwise movement, the latter effecting the coupling of the gears m with-the shaft by means of the pins 6 and 0. The arrangement of the gears 2, i and n is such, however, that the rotation of shaft a will take place in counterclockwise direction, (Fig. 1), so that when the rotary movement of the shaft is transmitted to the gears 02, the latter will be rotated in the same direction as said shaft, 2'. e., in a direction opposite to that in which they are rotated by the gears y and interposed idlers. Hence, it follows that the pins on the segment shaft will pick up the pins 0 on the ears as durin the rotation of said shaft, an will turn said gears 00, and with them the printing segments, in a backward direction, so that at the completion of rotation of the shaft all of said segments will be restored to zero. The teeth on disk .2 are so disposed with relation to gear 2', as to come into mesh with the latter only when the main shaft e is completing the final'portion of its movement, at which time the registering and printing operations have been concluded, as already stated.

I claim- 1. A calculating machine, comprising rotatable setting disks having displaceable teeth, a numeral printing mechanism adapted to be set by the displaced teeth, means for operating said disks, and means actuated by the disk operating means in its movement of operation for automatically returning said printing mechanism to zero position.v v

2. A calculatin machine, comprising rotatable setting isks having dlsplaceable teeth, a numeral printing mechanism adapted to be set by the displaced teeth,'a crank handle for rotating said disks, and means actuated automatically by said crank handle during its operating movement for returning said printing mechanism to zero position.

3. In a calculating machine, in combination, rotatable disks having displaceable teeth, registering mechanism operable by the displaced teeth, a numeral-printing mechanism adapted to be set by displaced teeth, a crank handle for rotating said disks, and means inserted between said handle and said printing mechanism for automatically returning the latter to zero position during the same movement of said handle, after the registering and printing operations have been carried out.

4. In a calculating machine, in combination, rotatable disks having displaceable gli rection durlng the same movement of said handle, after the registering and printing operations have been carried out.

5. In. a calculating machine, in combination, a re 'ster; a series of setting disks for determinmg the numbers to be run up therein; a device for driving said setting disks, to effect the actual running of the numbers; a series of printing segments, one for each setting disk, directly settable by said disks while the latter are being driven, to print the digits of the number then being run up; and means actuated automatically, just before said disks complete their driving movement, for zero-setting said printing segments.

6. In a calculating machine, in combination, a register; setting mechanism for determining the numbers to be run up therein; a drive shaft whereon said setting mechanism is mounted, operate the latter and thereby effect the actual running up of the numbers; printing mechanism settable automatically by the setting mechanism to print the number then being run up; and gearing between said shaft and said printing mechanism, for automatically zero-setting the latter substantially at the conclusion of the revolution of said shaft.

7. In a calculating machine, in combination, a register; setting mechanism for determining the numbers to be run up therein; driving means for said setting mechanism to effect the actual running up of the numbers; a series of segments for printing the digits of the number then being run up; a shaft whereon said printing segments are mounted, said shaft arranged, when rotated, to automatically zero-set said segments; and means actuated automatically by said driving means substantially at the conclusion of its driving operation, for effecting the rotation of said shaft.

8. In a calculating machine, in combination, a register; setting mechanism for determining the numbers to be run up therein; a drive shaft whereon said setting mechanism is mounted, to operate said settin mechanism and thereby effect the actua running up of the numbers, a series of segments for printing the digits of the number then being run up; a shaft whereon said segments are mounted, said shaft arranged segments; and connections between said drive shaft and said segment-carrying shaft for effecting the rotation of the latter substantially at the conclusion of rotation of the former.

9. A calculating machine, comprising rotatable setting disks having displaceable teeth; rotatable numeral-printing devices, one for each setting disk, said prmting devices settable by the displaced teeth; a drive shaft for rotating said setting disks; and means actuated automatically by said drive, shaft, substantially at the conclusion of its rotation, for turning said printing devices to zero position.

10. In a calculating machine, in combination, a register; setting mechanism for determining the numbers to be run up therein; a drive shaft whereon said setting mechanism is mounted, to operate the latter and thereby effect the actual running up of the numbers; mechanism set by said setting mechanism to print the numbers being run up; a shaft whereon said printing mechanism is mounted, said printing shaft arranged, when rotated, to automatically zeroset the said printing mechanism; a mutilated gear on said drive shaft; and a gear on said printing shaft automaticall actuated by the mutilated gear substantlally at the conclusion of rotation of the drive shaft.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

FRANZ TRINKS. Witnesses AUoUs'r HEIMROTH, RICHARD KRILBS.

when rotated, to automatically zero-set said 

